#2 — Condition to add CSS class "selected" to the Abcedaire doesn't match

There's this condition to add the CSS class "selected" to a link in the Abcedaire but it compares uppercase to lowercase letter:

    'css_class': letter == self.search_letter and 'selected' or None

I think the "letter" needs to be lowercased as the other occurances in this part of the code:

    'css_class': letter.lower() == self.search_letter and 'selected' or None